Patents by Inventor Hansruedi Stebler

Hansruedi Stebler has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Method and apparatus for high-pressure end exhaust gas recirculation on a supercharged internal combustion engine
    Patent number: 5564275
    Abstract: A method and apparatus for high-pressure end exhaust gas recirculation on a supercharged internal combustion engine which is relatively simple, low in cost and increases the efficiency of the engine. This is achieved by a third exhaust gas flow of the internal combustion engine expanding separately from a first exhaust gas flow and by providing power to compress a second exhaust gas flow. For this purpose, a turbine is arranged as the drive for the exhaust gas compressor. The exhaust gas duct system has a third exhaust gas duct connected to the turbine.
    Type: Grant
    Filed: October 16, 1995
    Date of Patent: October 15, 1996
    Assignee: ABB Management AG
    Inventors: Ennio Codan, Hansulrich Horler, Hansruedi Stebler, Markus Widenhorn